Range hood cleaning structure

Abstract

This application relates to a cleaning structure for a range hood, including a main body with an air duct system. The air duct system includes a volute, a nozzle, an impeller, and a guide ring. The nozzle is mounted on the guide ring of the volute. A water pump and a gas generating device are installed on the back panel of the main body. The gas generating device has two electrodes. When the water pump operates, it draws liquid and delivers it to the inlet of the gas generating device. The two electrodes continuously generate hydrogen and oxygen, which dissolve in water to form nano-bubble water. The outlet of the gas generating device is connected to the nozzle, which has a spray pipe parallel to the impeller and with its outlet direction aligned with the center of the impeller. This solution, by generating nano-bubble water, immerses the impeller in liquid for an extended period, maximizing the cleaning effect of the nano-bubble water.

Description

Technical Field

[0001] This application relates to the technical field of range hoods, and more particularly to a range hood cleaning structure. Background Technology

[0002] Range hoods are often filled with grease and grime, and the industry offers numerous cleaning functions for them, some of which utilize liquid media. Some technologies use water heating, atomization, or vaporization to clean the impeller blades. Currently, most solutions involve spraying water onto the blades; however, because the impeller is constantly rotating, the liquid remains on the blades for a very short time, and the grease is highly adhesive, resulting in ineffective cleaning.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Summary of the Invention

[0004] This application provides a range hood cleaning structure to solve the above-mentioned problems.

[0005] In a first aspect, this application provides a range hood cleaning structure, including a range hood body. The range hood body is equipped with an air duct system, which includes a volute, a nozzle, an impeller, and a guide ring. The nozzle is mounted on the guide ring of the volute. A water pump and a gas generating device are installed on the back plate of the range hood body. The gas generating device has two electrodes. When the water pump is working, it can draw liquid and transport it to the inlet of the gas generating device. The two electrodes continuously generate hydrogen and oxygen, which dissolve in water to form nano-bubble water. The outlet of the gas generating device is connected to the nozzle. The nozzle is provided with a spray pipe, which is parallel to the impeller and its outlet direction is aligned with the middle plate of the impeller.

[0006] Optionally, the volute is in an inclined position under normal conditions, and an oil leakage hole is provided at the bottom of the volute, through which liquid in the volute can flow out under gravity.

[0007] Optionally, a sealing assembly is installed below the volute, the sealing assembly including a motor bracket installed below the volute.

[0008] Optionally, the sealing assembly includes a telescopic motor, which is fixed to the motor bracket.

[0009] Optionally, the sealing assembly includes a sleeve and a telescopic rod, the telescopic rod being nested inside the sleeve and placed on the telescopic motor.

[0010] Optionally, a circular silicone plug is installed at the head of the telescopic rod. When the telescopic motor is not working, the telescopic rod is completely inside the sleeve, and the silicone plug is pressed against the sleeve to form a seal. When the telescopic motor is working, the telescopic rod extends out from the sleeve and moves towards the oil leakage hole of the volute. The silicone plug is pressed against the oil leakage hole to completely seal the oil leakage hole.

[0011] Optionally, the duct system includes a fan, which controls the impeller of the main body of the smoke machine to rotate.

[0012] Optionally, the main body of the smoke machine is also equipped with a solution box, which is connected to the gas generating device.

[0013] Optionally, the motor bracket is fixed to the base plate of the main body of the range hood by external screws.

[0014] The technical solutions provided in this application have the following advantages compared with the prior art:

[0015] This embodiment of the application uses a telescopic motor to plug the oil leakage hole, allowing water to accumulate inside the volute. Compared to traditional solutions, this solution allows for longer contact time between the impeller and volute and the liquid, resulting in better cleaning. Simultaneously, the use of nano-bubble water technology first cleans the central plate, then the blades, and also cleans the inner surface of the volute, significantly increasing the cleaning area of ​​the air duct system compared to traditional methods. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0019] Figure 1 This is a three-dimensional structural diagram of the range hood provided by this utility model.

[0020] Figure 2 for Figure 1 Side view.

[0021] Figure 3 This is a schematic diagram of the retraction of the telescopic motor.

[0022] Figure 4 This is a schematic diagram of the extension of the telescopic motor.

[0023] Figure 5 This is a cross-sectional schematic diagram of the gas generating device.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Main body of the range hood; 11. Back panel; 2. Duct system; 21. Fan; 22. Volute; 221. Oil drain hole; 23. Nozzle; 24. Impeller; 5. Air guide ring; 3. Solution box; 4. Gas generating device; 41. Electrode; 42. Inlet; 43. Outlet; 7. Water pump; 61. Motor bracket; 62. Telescopic motor; 63. Sleeve; 64. Telescopic rod; 65. Silicone plug. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0028] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0029] Figure 1-5 A range hood cleaning structure provided in this application embodiment includes a range hood body 1. The range hood body 1 is equipped with an air duct system 2, which includes a fan 21, a volute 22, a nozzle 23, an impeller 24, and a guide ring 5. The fan 21 controls the impeller 24 of the range hood body 1 to rotate. The volute 22 is in an inclined position under normal conditions. An oil drain hole 221 is opened at the bottom of the volute 22, and the liquid in the volute 22 can flow out from the oil drain hole 221 under gravity. The nozzle 23 is installed on the guide ring 5 of the volute 22. A water pump 7 and a gas generating device 4 are installed on the back plate 11 of the range hood body 1. Two electrodes 41 are installed on the gas generating device 4.

[0030] In this invention, when the water pump 7 is working, it can draw liquid and transport it to the inlet 42 of the gas generating device 4. The two electrodes 41 continuously generate hydrogen and oxygen and dissolve them in water to form nano bubble water. The outlet 43 of the gas generating device 4 is connected to the nozzle 23. The nozzle 23 is equipped with a nozzle pipe, which is parallel to the impeller 24 and the outlet 43 is aligned with the middle plate of the impeller 24.

[0031] Please see Figure 1 The main body 1 of the smoke machine is also equipped with a solution box 3, which is connected to a gas generating device 4. When the gas generating device 4 is working, it produces a small amount of hydrogen and oxygen that dissolves in water to form nano bubble water, which is then transported to the nozzle 23 by a water pump 7 connected to the gas generating device 4.

[0032] For some specific implementation details, please refer to [link / reference]. Figure 2-3A sealing assembly is installed below the volute 22. The sealing assembly includes a motor bracket 61, a telescopic motor 62, a sleeve 63, and a telescopic rod 64. The motor bracket 61 is installed below the volute 22 and fixed to the base plate of the main body 1 of the range hood by external screws. The telescopic motor 62 is fixed to the motor bracket 61. The telescopic rod 64 is nested inside the sleeve 63 and placed on the telescopic motor 62. A circular silicone plug 65 is installed at the head of the telescopic rod 64. When the telescopic motor 62 is not working, the telescopic rod 64 is completely inside the sleeve 63, and the silicone plug 65 is pressed against the sleeve 63 to form a seal. When the telescopic motor 62 is working, the telescopic rod 64 extends out from the sleeve 63, moving towards the oil leakage hole 221 of the volute 22. The silicone plug 65 is pressed against the oil leakage hole 221, completely sealing the oil leakage hole 221.

[0033] When the range hood is operating normally, the telescopic rod 64 is inside the sleeve 63, and the oil drain hole 221 remains open, allowing the grease filtered by the duct system 2 to flow out normally through the oil drain hole 221. When the range hood activates its cleaning function, the fan 21 starts rotating at a low speed, initially at approximately 120 r / min. After 3–10 seconds, the speed gradually decreases to 40–100 r / min. Once the speed stabilizes, the water pump 7 starts working, drawing water from the solution box 3. After 2–10 seconds, when the gas generating device 4 is filled with liquid, the gas generating device 4 is powered on, continuously generating gas to convert the liquid into nano-bubble water, which is then transported to the nozzle 23. The nozzle 23 sprays the nano-bubble water onto the impeller 24, continuously cleaning the impeller 24. As nano-bubble water drips from impeller 24, it gradually accumulates at the bottom of volute 22 due to the seal. When the liquid submerges the bottommost blades of impeller 24, pump 7 stops operating. Impeller 24 continues to rotate at a low speed, with each blade immersed in the nano-bubble water. The cleaning effect of the nano-bubble water comes from the rising and bursting of bubbles, and the agitation of impeller 24 enhances the cleaning effect. After 3-10 minutes of cleaning, telescopic motor 62 retracts telescopic rod 64, opening oil drain hole 221, allowing the water and oil mixture to flow out of volute 22. After 1 minute, fan 21 rotates at high speed for 10-100 seconds, dislodging any remaining liquid from impeller 24, completing the cleaning process.

[0034] This solution uses a telescopic motor 62 to plug the oil leak hole 221, allowing water to accumulate inside the volute 22. Compared to traditional solutions, this solution allows the impeller 24 and volute 22 to have a longer contact time with the liquid, resulting in better cleaning. Simultaneously, it employs nano-bubble water technology to first clean the central plate, then the blades, and also cleans the inner surface of the volute 22. This significantly increases the cleaning area of ​​the air duct system 2 compared to traditional methods.

[0035] The telescopic motor 62 used in this solution is completely retracted into the sleeve 63 when not in use, which can prevent it from being covered by oil stains during the daily operation of the range hood.

[0036] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0042] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0043] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cleaning structure for a range hood, comprising a main body of the range hood, characterized in that: The main body of the range hood is equipped with an air duct system, which includes a volute, a nozzle, an impeller, and a guide ring. The nozzle is mounted on the guide ring of the volute. A water pump and a gas generating device are installed on the back plate of the main body of the range hood. The gas generating device has two electrodes. When the water pump is working, it can draw liquid and transport it to the inlet of the gas generating device. The two electrodes continuously generate hydrogen and oxygen, which dissolve in water to form nano-bubble water. The outlet of the gas generating device is connected to the nozzle, and the nozzle is equipped with a spray pipe. The spray pipe is parallel to the impeller and the outlet direction is aligned with the middle plate of the impeller.

2. The range hood cleaning structure according to claim 1, characterized in that: The volute is normally placed at an angle, and an oil drain hole is provided at the bottom of the volute, through which liquid in the volute can flow out under gravity.

3. The range hood cleaning structure according to claim 2, characterized in that: A sealing assembly is installed below the volute, the sealing assembly including a motor bracket, the motor bracket being installed below the volute.

4. The range hood cleaning structure according to claim 3, characterized in that: The sealing assembly includes a telescopic motor, which is fixed on the motor bracket.

5. The range hood cleaning structure according to claim 4, characterized in that: The sealing assembly includes a sleeve and a telescopic rod, the telescopic rod being nested inside the sleeve and placed on the telescopic motor.

6. The range hood cleaning structure according to claim 5, characterized in that: A circular silicone plug is installed at the head of the telescopic rod. When the telescopic motor is not working, the telescopic rod is completely inside the sleeve, and the silicone plug is pressed against the sleeve to form a seal. When the telescopic motor is working, the telescopic rod extends out of the sleeve and moves towards the oil leakage hole of the volute. The silicone plug is pressed against the oil leakage hole to completely seal the oil leakage hole.

7. The range hood cleaning structure according to claim 1, characterized in that: The air duct system includes a fan, which controls the impeller of the main body of the smoke machine to rotate.

8. The range hood cleaning structure according to claim 1, characterized in that: The main body of the smoke machine is also equipped with a solution box, which is connected to the gas generating device.

9. The range hood cleaning structure according to claim 3, characterized in that: The motor bracket is fixed to the base plate of the main body of the range hood by external screws.

Images